Thermal impact on host rock of geologic repository; Final report

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Description

The initial stress of rock was estimated and analyzed based on the geological survey information collected during the site visits. Change in stress and its distribution in the rock due to excavation was investigated and predicted according to the repository geometry. Thermal effects on the magnitude and distribution of stress in rock was also investigated and predicted according to the repository geometry. Thermal effects on the magnitude and distribution of rock stresses were investigated under two different temperature conditions. Emphasis was placed on the development of fractures due to stress concentration at or near the repository openings. Permeability characteristics of ... continued below

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39 p.

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Mou, Ching-Hua March 1, 1986.

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Description

The initial stress of rock was estimated and analyzed based on the geological survey information collected during the site visits. Change in stress and its distribution in the rock due to excavation was investigated and predicted according to the repository geometry. Thermal effects on the magnitude and distribution of stress in rock was also investigated and predicted according to the repository geometry. Thermal effects on the magnitude and distribution of rock stresses were investigated under two different temperature conditions. Emphasis was placed on the development of fractures due to stress concentration at or near the repository openings. Permeability characteristics of host rock were evaluated at three temperature levels. Series of permeability tests were conducted for determining the thermal effect on the hydrological characteristics of rock. The following goals were achieved from this investigation: (1) Better understanding of stress changes in host rock due to repository excavation and thermal impact. (2) Better understanding of the development of rock fractures and its effect on the hydrological characteristics of host rock. (3) To provide the technical information obtained from this study to the Office of Civilian Radioactive Wastes Management (OCRWM) with a hope that it may assist OCRWM in the decision making of selecting a repository site. Due to limited time for this research, only one type of host media, granite, was included in the study.

Physical Description

39 p.

Notes

INIS; OSTI as DE92013559

Source

  • Other Information: PBD: Mar 1986

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  • Other: DE92013559
  • Report No.: DOE/OR/21497--1
  • Grant Number: FG05-84OR21497
  • DOI: 10.2172/138420 | External Link
  • Office of Scientific & Technical Information Report Number: 138420
  • Archival Resource Key: ark:/67531/metadc623592

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Creation Date

  • March 1, 1986

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Feb. 1, 2016, 2:02 p.m.

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Mou, Ching-Hua. Thermal impact on host rock of geologic repository; Final report, report, March 1, 1986; United States. (digital.library.unt.edu/ark:/67531/metadc623592/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.